Woodward 8440-2028 MicroNet Thermocouple Input Module

roduct Brief Introduction The 8440-2028 is a thermocouple input module for the Woodward MicroNet control system. It provides precision temperature measurement with built-in cold junction compensation for engine and turbine temperature monitoring applications.
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Technical Specifications

Channels: 8 thermocouple inputs. Types: J, K, T, E selectable. Resolution: 0.1°C. Accuracy: ±0.5°C. Cold junction compensation: internal. Isolation: 500V AC. Power dissipation: 3W. Operating temperature range: -40°C to +70°C.

Functional Features

Supports standard thermocouple types. Automatic cold junction compensation. Open circuit detection. Per-channel type configuration. Hot-swap capability.

Application Scenarios

It measures exhaust temperature, bearing temperature and process temperature in engine, turbine and industrial process control systems.

Performance Parameters

Update rate: 200ms per channel. Accuracy: ±0.5°C. CMRR: 100dB. Operating temperature range: -40°C to +70°C.

Material Composition

Housing: flame-retardant plastic. PCB: FR-4. Components: precision amplifiers, cold junction sensor. Connectors: gold-plated copper.

Structural Characteristics

MicroNet standard module, front panel LEDs, rear connector, DIN rail mounting.

Working Principle

It amplifies thermocouple millivolt signals, compensates for cold junction temperature, digitizes values and transmits temperature data to the controller.

Installation Requirements

Mount on MicroNet base. Connect thermocouples. Configure types per channel. Calibrate.

Usage Notes

Use matching extension wire. Calibrate periodically. Follow ESD procedures.




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